This repo contains a single AI (Adobe Illustrator) file which has columns and gutters representing the exact 1170 px grid that Bootstrap 3.0.3 uses.

There are 5 separate layers, which provide a layout for 12 cols, 6 cols, 4 cols, 3 cols and 2 cols for a fixed width of 1170px.

Over the next week or two, I will add artboards for other mobile devices and screen sizes, namely @media (min-width: 768px) , @media (min-width: 992px) and @media (min-width: 1200px).

Creator: Ben Grunfeld @bengrunfeld